Using the Document Map to Navigate Through a Large Document

If you're drafting a large document, you owe it to yourself to give each section a proper name and to assign these lines a Heading style. (To label a heading, simply select the text, click on the Style menu and select one of the headings.) Once you've done this, you can easily navigate through your large and unwieldy document by using a handy little feature called the Document Map.
Go to View, Document Map to open this window. Your designated headings will appear in a window on the left, and double-clicking on any one of them will bring you to that place in the document.